Catholic Encyclopedia: St. Wenceslaus: Also called Vaclav or Vaceslav. The patron saint of Bohemia, murdered by his brother c. 929.
Catholic Online: St. Wenceslaus: The longer of two hagiographies at catholic.org. Some confusion about dates in this one.
Everything2: St. Wenceslaus: Short biography.
Patron Saints Index: Wenceslaus: Illustrated profile. With links.
Saint Wenceslaus, King and Martyr: Biography of the real "Good King Wenceslaus."
Saints Wenceslaus and Ludmilla: Article by Mary O'Brien, about the Duke of Bohemia and his grandmother St. Ludmilla.
Wenceslaus of Bohemia: Short biography of the saint, by Karen Rae Keck.
Wenceslaus, Saint, duke of Bohemia: Brief biographical entry in the Columbia Encyclopedia, 6th ed.